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Topaz & Bixbyite

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SHS25063

Topaz & Bixbyite

Description Tabs

Description
Locality: 
Pismire Wash, Juab County, Utah, United States of America
Size Range: 
Miniature (4.5-7 cm)
Size: 
4.5 × 4 × 3.7 cm
Largest Crystal: 
2.20cm
Description

Bixbyite cubes on topaz

Mineral Data
What's on the rock

Topaz

Formula: 
Al2(SiO4)(F,OH)2
Strunz: 
9.AF.35
Crystal System: 
Orthorhombic - Dipyramidal
Hardness: 
8.0
Streak: 
White

Bixbyite

Formula: 
Mn3+2O3
Strunz: 
4.CB.10
Hardness: 
6.0 - 6.5
Colour: 
Black
Streak: 
Black
Type Locality: 
Maynard's claim (Pismire Knolls), Thomas Range, Juab Co., Utah, USA...